I am trying to create a table which throws the error of an existing table but when I use the select command to view it throws does not exist error.
I am using DBeaver client tool for PostgreSQL.
Please make sure you are accessing the correct schema name while creating/selecting the table.
In DBeaver on left side you can check the list of tables available in the database, screen shot is attached. Check if the table is present there.
Kindly share the commands you are using for creating and selecting the table.